322 NATURAL HISTORY OF PLANTS. 



racemose ; racemes axillary simple or subfascicled at extremities of 

 twio-s ; bracts caducous ; bractlets minute or 1 (Tropical America 2 ). 



130. Coumarouna Aubl. 3 — Eeceptacle cupuliform, lined by a 

 disk. Calyx gamosepalous ; lobes 5, very unequal ; 2 superior equal 

 to each other, valvate large wing-like subcoriaceous ; 3 inferior very 

 small, rather thick, connate into a 3-toothed or subentire lip. Pe- 

 tals very dissimilar ; standard broadly obovate, orbicular, or ovate, 

 emarginate 2-fid ; wings oblong or falcate, oblique, often 2-fid or 

 emarginate ; petals of keel nearly similar to wings, free or dorsally 

 cohering. Stamens 10, 1-adelphous ; filaments connate into a 

 sheath longitudinally cleft above ; anthers versatile ; 5 alternate 

 often shorter or abortive. Germen supported on a compressed stalk ; 

 ovule 1, descending; style slender, inflexed or curved; apex minutely 

 capitate stigmatiferous. Fruit drupaceous ovoid, rather compressed ; 

 endocarp woody, very thick, indehiscent (or subdehiscent ?), 1-seeded. 

 Seed descending ; radicle short, nearly straight. — Trees ; leaves 

 opposite or alternate, subparipinnate ; leaflets opposite or alternate ; 

 rachis often narrowly winged ; stipules minute or ; flowers 4 in 

 compound much branched terminal racemes ; bracts small caducous ; 

 bractlets larger, nearly similar to large sepals, often valvate in- 

 closing younger buds, caducous (Tropical America 6 ). 



181. Pterodon Vog. 6 - — Flowers of Coumarouna; 2 sepals large 

 wing-like membranous petaloid, closely valvate. Corolla and 1- 

 adelphous stamens of Coumarouna ; anthers uniform. Germen stipi- 

 tate or more rarely subsessile (of Coumarouna). Fruit drupaceous, 

 ovate or oblong, flattened, more or less oblique ; sarcocarp thin oily ; 

 endocarp woody, separating from exocarp on maturity, tapering all 



1 This genus ought rather to be considered a 91). — DC, Prodr., ii. 477. — Space, Suit, a 

 section of Andira. Buffon, i. 111. — Endl., Gen., n. 6728. — B. H., 



2 Species 4 or 5. Jacq., Amer., 207. — Gen., 551, n. 257. 



H. B. K., Nov. Gen. et Spec, vi. 379.— H. B., 4 Violet or pink, often handsome. 



Plant. Mquin., ii. 69, t. 100. — Benth., in Hook. 5 Species 8. Benth., in Ann. Wien. Mus., 



Joum., ii. 69 ; in J our n. Linn. Soc, iv. Suppl., ii. 110; in Hook. Journ., ii. 235; in Journ. 



123 ; in Mart. Fl. Bras., Papil., 299, t. 117. Linn. Soc, iv. Suppl., 124 ; in Mart. Fl. Bras., 



3 Guian., 740, t. 296 (1775).— J., Gen., 364.— Papil., 300, t. 118, 119.— Tul., in Arch. Mus., 

 H. Bn., in Adansonia, ix. 214. — Cumaruna iv. 100. 



Lake.. Lll, t. 601.— Baryosma Gjjetn., Fruct., « In Linncsa, xi. 384.— Endl., Gen., n. 6730.— 



ii. 73, t. 93.— Pees., Si/n., ii. 278.— Henizia B. H., Gen., 551, n. 258.— Commilobium Benth., 



Scop., Lntrod., n. 1270 (1777). — Taralea Aubl., in Ann. Wien. Mus., ii. 110.— Ekdl., Gen., n. 



op. cit., 745, t. 298. — Bolducia Neck., Elem., 6729. 

 n. 1342. — Dipteryx Scheeb., Gen., 845 (1789- 



